You can implement the logic inside the interface as default implementation. Thus, avoid duplicating it. Refer to https://www.baeldung.com/java-static-default-methods#why-interfaces-need-default-methods for more details.

e.g.

public interface Handler  {
 default Container createComponents(ar1, arg2, arg3) {
  // logic here
 }
}

public class DefaultHandler implements Handler {
}

@ViewScoped
public class SpecificHandler extends DefaultHandler {
}